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Professor of Public Affairs at University of Wisconsin. Health Economics, Social Genomics, Networks. Views my own. https://fletcher.lafollette.wisc.edu https://substack.com/@jasonmfletcher
Jason Fletcher









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Hey, I wrote a thing about AI in astrophysics ergosphere.blog/posts/the-ma...
Mentoring Session Notes (Part 3): What Cover Letters Are Actually For open.substack.com/pub/jasonmfl...
Sherry Glied and I have critiqued the recent analysis on the impact of Medicaid work requirements on poverty. It is linked here: : www.healthaffairs.org/content/fore... Unfortunately, Professors Mulligan and Bai who appear to have led the work get a failing grade on this one.
In Print! Can clean water in early life shape longevity decades later? Using water filtration programs in 25 cities, @hamidnb.bsky.social & @jasonmfletcher.bsky.social find that childhood exposure to filtered water increased male longevity by 3 months. www.journals.uchicago.edu/doi/10.1086/734081
The First Domino: when should we blame AI for misleading us? open.substack.com/pub/jasonmfl...
Mentoring Session Notes (Part 2): Managing Research "Lanes" open.substack.com/pub/jasonmfl...
Mentoring Session Notes (Part 1): Planning for tenure letters open.substack.com/pub/jasonmfl...
The Last Human in the Research Loop open.substack.com/pub/jasonmfl...
AI agents are not (yet) your Coauthor. They are a Fleet of Weird RAs. open.substack.com/pub/jasonmfl...
2mo
Moving the goalposts when evaluating AI open.substack.com/pub/jasonmfl...
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On AI agents, grunt work, and the part of science that isn't replaceable.
ergosphere.blog
The machines are fine. I'm worried about us.
Minas Karamanis
Jason Fletcher
Jason Fletcher
Jason Fletcher
Jason Fletcher
Jason Fletcher
Jason Fletcher
ASHEcon 2026 wrapped up in Minneapolis last week, and I thought I’d post a few of the main questions I heard in the early scholars mentoring sessions on Sunday.
open.substack.com
Mentoring Session Notes (Part 3): What Cover Letters Are Actually For
Jason Fletcher
TLDR: Don’t Let Mature Papers Sit on Your Desk and Rely on Mentors
open.substack.com
Mentoring Session Notes (Part 2): Managing Research "Lanes"